We're slowly getting through to all the things we coded up for seesaw https://github.com/adafruit/seesaw and porting it to our Arduino-library-version here https://github.com/adafruit/Adafruit_seesawPeripheral . We've got digital in and out, now doing analog input. Thankfully, we should be able to quickly adapt to other chips that have Arduino core support which will make development/debugging easier.
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